This card, from user JUNJUN2, is the first I have ever received from Japan. It travelled 9,677 km (6,013 miles) in just 7 days which is quite efficient.
The next card, from user MidnightGirl in Lithuania, which was another first for me. This one had travelled 1,816 km (1,128 miles)in 9 days. Not quite as efficient as the Japan card but still pretty good.
And lastly this unusually long card from mr_budenkov in Russia which had travelled 1,596 km (992 miles) in 12 days. Cards from Russia are not unusual, but this is the first one I have received from Kaliningrad. What makes Kaliningrad unusual is that is is part of the Kaliningrad enclave - a piece of Russia which is not contiguously attached to the rest of the country. Just as Alaska is separated from the rest of the United States by Canada, so the Kaliningrad enclave is separated from the rest of Russia by Poland and Lithuania.